Left: postage stamp of the most massive galaxy in Cl J0227-0421 generated in an identical manner to that of Fig. 11. Right: observed-frame optical/NIR SED of this galaxy plotted against the best-fit galaxy template. As before, the best-fit stellar mass and luminosity-weighted stellar age are shown in the upper left corner of the plot. While this galaxy is also host to a type-1 AGN, the properties of its SED are much different than that of the proto-BCG and the SED is generally well fit by the galaxy template. There is some discrepancy in the IR portion of the SED, but an identical stellar mass is recovered (within the random errors) if IRAC bands are excluded from the fit.